Development of an ion attachment mass spectrometer for direct detection of intermediates in combustion flames.
A system with Li+ ion attachment (IA) ionization has been developed for the direct detection of intermediates formed in burning flames by mass spectrometry. Dimethyl ether (DME) among alternative fuels was selected as a test substance to examine the capability of the system. As a result, intermediates generated in a premixed DME-air flame were directly detectable as Li+ adduct ions. By moving the burner on an X-Y stage, spatial distribution profiles of different species, including unburned DME and formaldehyde, were obtained for three types of flames: diffusion, partially premixed, and premixed.
Torii
Takahiro
T
Department of Applied Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan.
Nishimura
Takashi
T
Nakamura
Megumi
M
Shiokawa
Yoshiro
Y
Matsumoto
Kozo
K
Kitagawa
Kuniyuki
K